![]() ![]() JAVA_PROPS="=true =$CATALINA_HOME - Djava.io.tmpdir=$TMP_DIR -javaagent:/tmp/jSSLKeyLog.jar=/tmp/jssl-key.log" and restart the ZENServer Serviceģ. On Linux Primary Server add the following to JAVA_PROPS in "systemd.zenserver" file. ![]() javaagent:C:\jSSLKeyLog\jSSLKeyLog.jar=C:\jSSLKeyLog\jssl-key.log and restart the ZENServer ServiceĢ. ( Double click ZENServerw.exe → Java tab → Java Options) On Windows Primary Server Server add the following to ZENServer Service Manager Java Options. Steps:ġ) Download jSSLKeyLog from (or), unzip it and copy the jar file to a local directory on ZENworks Primary or Satellite servers.Įg: On Windows : C:\jSSLKeyLog\jSSLKeyLog.jarĢ) Configure jSSLKeyLog as a Java parameter (JVM Flag)Įg: 1. jSSLKeyLog is a Java agent which can be injected into the JVM to dump the symmetric key to a file, which then is used later by Wireshark to decode the SSL traffic. After the handshake is complete, the symmetric key is used to encrypt/decrypt the application data (payload) to be transmitted over the wire. TLS/SSL handshake uses asymmetric (public/private) keys to negotiate a symmetric key. The current document provides steps to debug SSL/TLS traffic using jSSLKeyLog which doesn't require RSA Keys List and no need to change the tomcat server configuration to exclude any Deffie Hellman based encryption ciphers PROCEDURE How does it work? For Satellite Servers(Configured with any of the SSL roles)we need to extract the private key from jetty-keystore.jks.Need to change the tomcat server configuration to exclude any Diffie Hellman based encryption ciphers (TLS_DHE, TLS_ECDHE etc) since those can not be decrypted by Wireshark.It's easy to get primary server's private key and add it to Wireshark's RSA Keys List.When debugging a network issue related to TLS/SSL, we often use Server's Private key(server.key) which is explained in Decrypting SSL on Wireshark This document provides an alternative to Java's TLS/SSL debug flag by using jSSLKeyLog and Wireshark. ![]()
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